mm static deflection. Determine the spring stiffness and isolation efficiency at 60 Hz for one of the eight springs.
Natural frequency (fo):
2TVm
where k is the spring stiffness, and m is the shared mass of the chiller supported by each spring.
Static deflection (δ):
δ = 1/(fo/0.52)
Force Transmissibility (T):
T = f/fo
where f is the forcing frequency, and fo is the natural frequency.
Isolation efficiency = 1 - T x 100% (6 marks)